Despite his nickname as the Oracle of Omaha, Warren Buffett can't really see into the future. Here's a roundup of some of the biggest paper losses the Berkshire Hathaway CEO has suffered during his otherwise illustrious career.

Investors have been increasingly willing to dip into stocks with no new negative developments in Ebola, a steadying of oil prices, and the sense that the Fed will not move to raise rates quickly even as it ends bond buying.